Pore Water Nutrient Regeneration in Shallow Coastal Bohai Sea, China

摘要: The regeneration of pore water nutrients was studied and the contribution benthic nutrient fluxes to overlying evaluated on basis field specific observations conducted in September–October 1998 April–May 1999 Bohai Sea. Nutrient concentrations sediment waters were examined by incubating core samples with seawater air and/or nitrogen conditions. diffusion calculated diagenetic equations within a factor 2 during incubations. factors affecting across sediment/water interface include bioturbation, nitrification, denitrification, adsorption, dissolution. from sediments will increase loads Sea affect atomic ratios this region. Among sources riverine input, atmospheric deposition regeneration, ammonium phosphate mainly came (>50%); nitrate transported input into Sea, silicate accounts up 60%. This demonstrates that contributes more than together, but flux very much less relative deposition. may lead decrease amount nitrate, an phosphate, ammonia column. release compensate due reduction discharge. have important influence eutrophic character coastal